Could you please explain to me the process by which I should "Find the area and volume of a wine glass by rotation........". Thanks a lot in advance..

I do not understand why you would decide to do a presentation on something you know nothing about. Surely the point is either to present about something you do know, or to do some research (which no doubt is something whoever set you this task would have wanted you to do). It is not our job to do your research.